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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3PW91/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-476.737739
Energy at 298.15K-476.742184
HF Energy-476.737739
Nuclear repulsion energy100.686414
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3134 3134 16.33      
2 A1 1477 1477 2.21      
3 A1 1156 1156 1.63      
4 A1 1029 1029 0.71      
5 A1 651 651 25.07      
6 A2 3224 3224 0.00      
7 A2 1180 1180 0.00      
8 A2 887 887 0.00      
9 B1 3238 3238 3.55      
10 B1 948 948 3.23      
11 B1 825 825 0.59      
12 B2 3132 3132 12.19      
13 B2 1448 1448 1.13      
14 B2 1053 1053 22.26      
15 B2 681 681 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 12031.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12031.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/daug-cc-pVDZ
ABC
0.73426 0.35517 0.26509

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.871
C2 0.000 0.741 -0.802
C3 0.000 -0.741 -0.802
H4 -0.920 1.257 -1.075
H5 0.920 1.257 -1.075
H6 0.920 -1.257 -1.075
H7 -0.920 -1.257 -1.075

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82971.82972.49302.49302.49302.4930
C21.82971.48151.09021.09022.21682.2168
C31.82971.48152.21682.21681.09021.0902
H42.49301.09022.21681.84083.11662.5148
H52.49301.09022.21681.84082.51483.1166
H62.49302.21681.09023.11662.51481.8408
H72.49302.21681.09022.51483.11661.8408

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.118 S1 C2 H4 114.884
S1 C2 H5 114.884 S1 C3 C2 66.118
S1 C3 H6 114.884 S1 C3 H7 114.884
C2 S1 C3 47.765 C2 C3 H6 118.287
C2 C3 H7 118.287 C3 C2 H4 118.287
C3 C2 H5 118.287 H4 C2 H5 115.182
H6 C3 H7 115.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.177      
2 C 1.505      
3 C 1.505      
4 H -0.708      
5 H -0.708      
6 H -0.708      
7 H -0.708      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.004 2.004
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.274 0.000 0.000
y 0.000 -24.462 0.000
z 0.000 0.000 -26.347
Traceless
 xyz
x -0.869 0.000 0.000
y 0.000 1.849 0.000
z 0.000 0.000 -0.979
Polar
3z2-r2-1.958
x2-y2-1.812
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.870 0.000 0.000
y 0.000 6.380 0.000
z 0.000 0.000 7.862


<r2> (average value of r2) Å2
<r2> 56.826
(<r2>)1/2 7.538